CVE-2026-21304
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by a heap-based buffer overflow that could allow arbitrary code execution in the context of the current user. Exploitation requires user interaction, such as opening a malicious file.
Risk Assessment
An attacker could gain control of the victim's system by executing arbitrary code. The risk is high because merely opening a crafted file can trigger the vulnerability.
Recommendation
Update InDesign Desktop to the latest available version immediately. Also, avoid opening files from untrusted sources.
Other vulnerabilities in Adobe InDesign
See all- CVE-2017-11302Critical
A memory corruption vulnerability was discovered in Adobe InDesign 12.1.0 and earlier versions. Successful exploitation could lead to arbitrary code execution.
- CVE-2026-34705Medium
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. Exploitation requires user interaction to open a malicious file.
- CVE-2026-34704Medium
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this to crash the application, requiring user interaction (opening a malicious file).
- CVE-2026-34703Medium
InDesign Desktop versions 21.3, 20.5.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. An attacker could exploit this to crash the application, requiring user interaction (opening a malicious file).
- CVE-2026-27285Medium
InDesign Desktop versions 20.5.2, 21.2 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application or disrupt its functionality. Exploitation requires user interaction – the victim must open a malicious file.
- CVE-2026-21332Medium
InDesign Desktop versions 21.1, 20.5.1 and earlier are affected by an out-of-bounds read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. Exploitation requires user interaction – the victim must open a malicious file.
- CVE-2026-21277High
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by a heap-based buffer overflow that could allow arbitrary code execution in the context of the current user. Exploitation requires user interaction, such as opening a malicious file.
- CVE-2026-21276High
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an access of uninitialized pointer vulnerability that could allow arbitrary code execution in the context of the current user. Exploitation requires user interaction, such as opening a malicious file.
- CVE-2026-21275High
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an access of uninitialized pointer vulnerability that could allow arbitrary code execution in the context of the current user. Exploitation requires user interaction, such as opening a malicious file.
Original NVD description (English source)
InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.